Hoisting mechanism



March 7, 1939. J. F. JOY 2,149,889

" HOISTING MEGHANISM Filed Oct. 2l, 1936 2 Sheets-Sheet 1 .March 7,1939. '9 l MOY' 2,149,889

HOISTING MECHANISM Filed Oct. 2l, 1936 2 Sheets-Sheet 2 Patented Mar. 7, 1939 PATENT OFFICE HOISTING IWECHANISM Joseph F. Joy, Claremont,fN. H., assignor to Sullivan Machinery Company, a corporation of Massachusetts Application October 21, 1936, Serial No. 106,850

12 Claims.

This invention relates to hoisting mechanisms, and more particularly to improvements in a hoisting mechanism of a simple, rugged and compact character particularly adapted to use in mines.

An object of this invention is to provide an irnproved hoisting mechanism. Another object is to provide an improved hoisting mechanism of the mine column type. Still another object is to provide an improved hoisting mechanism of an extremely simple, rugged and compact character particularly adapted to use in mines and having associated therewith an improved mine column structure whereby the hoisting mechanism may be readily set up and secured in hoisting position. Other objects and advantages of the invention will, however, hereinafter more fully appear.

In the accompanying drawings there is shown for purposes of illustration one form which the invention may assume in practice.

In these drawings:-

Fig. 1 is a side elevational view of the illustrative form of the improved hoisting mechanism.

Fig. 2 is an enlarged view in vertical section showing details of construction.

Fig. 3 is an enlarged view taken in the plane of Fig. 2 showing the upper portion of the mine column structure.

Fig. 4 is a horizontal sectional view taken substantially on line 4-4 of Fig. 2, with the parts in drum driving position. K

Fig. 5 is a horizontal sectional view taken substantially on line 5 5 of Fig. 2, with the parts in drum driving position.

In this illustrative embodiment of the invention there is shown a hoisting mechanism of the portable mine type comprising a hoisting drum structure generally designated I, a driving motor 40 2 and a mine column structure generally designated 3. The mine column structure is herein of an extensible form and includes a vertical column 4 in the form of a cylindrical, tube having its lower extremity fixed as at 5 within the hub 6 of a base frame l. This base frame is, in this instance, of basin-like form havingk projecting at spaced points from its bottom surface sharpened feet 8 adapted to dig into the supporting surface to prevent rotative movement of the hoisting mechanism during the hoisting operation. J ournaledon a bearing sleeve 9 supported by the column 4 and projecting within the chamber I0 of the base is a horizontal hoisting drum Il having wound thereon a hoisting cable I2. One end of 55 this hoisting cable is secured at I3 by a bolt-like clamp I4 to the upper iiange I5 of the hoisting drum. The upstanding side ilange I6 of the base, as shown in Fig. 2, partially surrounds the hoisting drum. The lower face of the hub Il of the drum engages the bottom flange I 8 of the bearing sleeve, while the upper end of the hub engages a washer I9 located in position with respect to the column by means of a collar 2U fixed as by a set screw 2| to the column. Arranged in recesses 22 formed in the collar 2|] are coiled springs 23 engaging the upper surface of the washer I9 for urging the latter downwardly into frictional contact with the drum hub, to provide a drag brake for the drum to prevent undue spinning of the latter when disconnected from its drive.

The means for driving the drum, in this instance, comprises the motor 2 pivotally mounted at 24 o-n a bracket 25 secured as by a clamp 26 to the column 4, the motor pivotally mounted to swing in planes parallel to a plane including the mine column axis. Keyed to the lower end of the motor power shaft is a spur motor pinion 21 adapted to mesh with and drive a large spur gear 2B xed to the upper flange I5 of the hoisting drum. lA sheet metal housing 29 mounted on the column houses the upper portion of the gearing, and this housing is formed with a slot 30 through which the motor power shaft projects for permitting swinging movement of the spur 4gear 2l into and out of meshing engagement with the spur gear 28.

The means for swinging the motor and for locking the same in driving position comprises a bracket 3l fixed by a set screw 32 to the column 4 and having rotatably mounted thereon an eccentric shaft 33 having an operating lever 34. The eccentric 33 projects within a recess 35 formed in a link 36 pivotally connected at 31 to a collar 38 surrounding and secured to the lower portion of the motor casing. When the eccentric is rotated into the position shown in Fig. 2, the motor is swung outwardly to bring the teeth of the spur gear 21 out of engagement with the teeth of the spur gear 28, and when the eccentric is swung in the opposite direction the spur gear 2l is brought into and locked in meshing engagement with the spur gear 28.

Telescopically arranged within the upper Yportion of the mine column is an extensible foot piece 49 -threadedly engaged at 4I within a nut member 42 in turn secured by a sleeve 43 to the upper extremity of the column 4. Arranged in a transverse bore 44 Within the pointed end portion 45 of the foot piece is a slide bar 46 adapted to beV manually actuated to rotate the foot piece relative to the nut member 42, thereby to move the pointed end of the foot piece outwardly into engagement with a top abutment surface, for securing the hoisting mechanism between the mine floor and mine roof.

When the hoisting mechanism is secured in position in the mine passage in the manner disclosed in Fig. 1 between the mine roof and mine floor, the free end of the hoisting cable may be extended to a suitable object to be hoisted and the motor 2 may be swung inwardly to bring the motor pinion 21 into driving engagement with the spur drum gear 28 and the drum may be rotated to wind in the hoisting cable. The hoisting drum may be readily disconnected from its drive simply by operating the eccentric mechanism to swing the motor outwardly, thereby moving the teeth of the spur gear 21 out of meshing engagement with the drum driving gear. Due to its improved design the hoisting mechanism is extremely simple, compact and relatively light in weight, thereby enabling transportation thereof with comparative ease, and by the provision of the improved mine column structure the hoisting mechanism may be readily set up and secured in hoisting position. These and other uses and advantages of the improved hoisting mechanism will be clearly apparent to those skilled in the art.

While there is in this application specifically described one form which the invention may assume in practice, it will be understood that this form of the same is shown for purposes of illustration and that the invention may be modified and embodied in various other forms without departing from its spirit or the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent is:

l. In a hoisting mechanism, a central column structure having an upper abutment engaging portion for securing the hoisting mechanism in hoisting position, said column structure having a widely extended circular base provided with pointed feet, a hoisting drum journaled on said column structure in coaxial relation therewith, the bottom of said drum disposed in adjacency to the base bottom within the lateral limits of said base, and a motor mounted on said column structure above said base and drum for driving said drum.

2. In a hoisting mechanism, a central mine column structure for securing the hoisting mechanism in hoisting position, a hoisting drum journaled on said column in coaxial relation therewith, a motor pivotally mounted on said column for dri-ving said drum, said motor having a motor pinion, a gear secured to the drum, and means for swinging said motor relative to said column structure to move said motor pinion into and out of meshing engagement with said drum gear.

3. In a hoisting mechanism, a central mine column structure for securing the hoisting mechanism in hoisting position, a hoisting drum journaled on said column in coaxial relation therewith, a motor pivotally mounted on said column structure, said motor having a motor pinion, a gear secured to the drum, and a manually operable eccentric mechanism connected to the lower portion of the motor for swinging said motor relative to said column structure to move said motor pinion into and out of meshing engagement with said drum gear.

4. In a hoisting mechanism, a support, Va hoisting drum journaledon said support, a motor pivotally mounted on said support, said motor having a motor pinion, a gear secured to the drum, and means for swinging said motor relative to said support to move said motor pinion into and out of meshing engagement with said drum gear, said motor swinging means embodying means for locking said motor pinion in meshing engagement with said drum gear.

5. In a hoisting mechanism, a central mine column structure for securing the hoisting mechanism in hoisting position and including a cylindrical tube, a base for said mine column structure to which the lower portion of said tube is secured, said base having a chamber, a drum journaled on said tube and having its lower portion projecting within the base chamber, and a motor mounted on said column structure for driving said drum.

6. In a hoisting mechanism, a mine column having an upper abutment engaging portion for securing the hoisting mechanism in hoisting position, said column having a widely extended circular base, a hoisting drum journaled on said column with its axis of rotation coincident with the longitudinal axis of said column, the bottom of said drum disposed in adjacency to the base bottom within the lateral limits of said base, and a motor mounted on said column above said drum and base for driving said drum.

'7. In a hoisting mechanism, a mine column for securing the hoisting mechanism in hoisting position and having a circular base formed with an upstanding ange providing an internal chamber, a hoisting drum journaled on said column in coaxial relation therewith and having its bottom disposed in adjacency to the bottom of said base, said drum having its lower cable winding portion projecting within the base chamber and a motor mounted on said column above said drum for driving the latter.

8. In a hoisting mechanism, a base having an upstanding column, a hoisting drum journaled on said column in coaxial relation therewith, a motor pivotally mounted on said column for driving said drum and having a motor pinion, a gear secured to said drum, and means for swinging said motor relative to said column to move said motor pinion into and out of meshing engagement with said drum gear.

9. In a hoisting mechanism, a base having an upstanding column, a hoisting drum journaled on said column in coaxial relation therewith, a motor pivotally mounted on said column and having a motor pinion, a gear secured to said drum, and a manually operable eccentric mechanism connected to the lower portion of the motor for swinging said motor relative to said column to move said motor pinion into and out of meshing engagement with said drum gear.

10. In a hoisting mechanism, a base having an upstanding cylindrical tube, said base having a chamber, a drum journaled on said tube and having its lower cable winding portion projecting within said base chamber with the bottom of said drum in adjacency to the base bottom, and a motor mounted on said tube above said drum for driving the latter.

11. In a hoisting mechanism, a base having an upstanding column, a hoisting drum journaled on said column in coaxial relation therewith, a motor adjustably mounted on said column for driving said drum and having a motor pinion, a gear connected in operative driving relation with said drum, and means for adjusting said motor relative to said column to move said motor pinion into and out of meshing engagement with said gear.

12. In a hoisting mechanism, a base having an upstanding column, a hoisting drum journaled on said column in coaxial relation therewith, a motor adjustably mounted on said column for `driving said drum and having a motor pinion,

a gear connected in operative driving relation with said drum, and means for adjusting said 

